Broadband water-based metamaterial absorber for millimeter-wave, high-power applications

Donor–acceptor modified ixiolite structural ceramics for millimeter-wave broadband metamaterial devices

“…34,35 Moreover, Ruan and co-workers proposed an all-dielectric metamaterial absorber affording the maximum absorption up to 98% at 190 GHz, as well as a wide absorption frequency range from 115 GHz to 300 GHz and a nearly 90% relative absorption bandwidth. 36 As a single dielectric ceramic block can achieve basic resonance functions, ceramic-based dielectric metamaterials are simpler in structure and easier to prepare compared to metal-based metamaterials. Meanwhile, with their low dielectric loss, good environmental compatibility and multi-field tunability, they are considered as promising alternatives to metal-based metamaterials and could bring new strategies for the design and development of passive devices.…”

“…34,35 Moreover, Ruan and co-workers proposed an all-dielectric metamaterial absorber affording the maximum absorption up to 98% at 190 GHz, as well as a wide absorption frequency range from 115 GHz to 300 GHz and a nearly 90% relative absorption bandwidth. 36…”